Window-screen.



Patented Aug. I2, I902. M. KOLF.

WINDOW SCREEN.

(Appligation filed Apr. 15, 1902.)

(No Model.) '2 Sheets-Sheet I.

I; r v I f ,15 II I f 11 7C E I y i p s 15 WW vnz n kozf WW 9W No.706,762. Patented Aug. l2, E9102.

M. KULF. WINDOW SCREEN.

(Application filed Apr. 15, 1902.)

(No Model.) 2 Sheets- Sheat 2.

ms Noam: PETERS co PHOYO-LITHQ, WASHINGTON. bio.

NlTED TATES MAX KOLF, OF ST. LOUIS, MISSOURI, ASSIGNOR TO EMIL J. DIENSTAND JOHN A. BADENDIECK, OF ST. LOUIS, MISSOURI.

WINDOW-SCREEN.

SPECIFICATION forming part of Letters Patent No. 766,762, dated August12, 1902.

Application filed April 15. 1902. Serial No. 103,056.. -(N model.)

To all whom it may concern:

Be it known that 1, MAX KOLF, of the city of St. Louis, State ofMissouri, have invented certain new and useful Improvements in \Vin-(low-Screens, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, formingapart hereof.

Myinvenion relates to window-screens; and it consists of the novelconstruction, combination, and arrangement of parts hereinafter shown,described, and claimed.

My object is to construct an improved wind0w-screen; and my inventionconsists of extended parting-strips between the window sashes, bracketsattached to the lower cor 11ers of the window-sash and extendingoutwardly and laterally to points in front of the parting-strips, aroller mounted in said brackets, a spring connecting one of the bracketsto the roller, a fly-screen wound upon the roller, stiifening-barssecured to the lower edge of the screen, brackets attached to thewindow-casing, and hooks extending from the brackets through the screenand engaging said stiffening-bars to hold the lower edge of the screensecurely in position, all arranged so that as the window-sash is raisedand lowered the screen will wind and unwind upon the roller, and acasing attached to the window-sash in position to cover the screen whenit is wound upon the roller.

The essentials are a spring-roller, a screen adapted to wind upon theroller, said screen and roller forming a connection between thewindow-sash and the window-frame, so that as the window is raised orlowered the screen winds and unwinds upon the roller to cover thewindow-opening."

Figure 1 is a vertical section through a window, showing my improvedscreen applied thereto. Fig. 2 is an outside elevation of the window.Fig. 3 is a horizontal section. Fig. 4. is a detail perspective, partsbeing broken away to show the construction. Fig. 5 is a horizontalsection through one of the brackets to show the spring connecting theroller to the bracket. Fig. 6 is a cross-section showing the spring inelevation.

Referring to the drawings in detail, the

parting-strips 7 between the window-sashes are extended by the additionof the extension-pieces 8, and the brackets 9 and 10 are attached to thelower corners of the windowsash and extend outwardly and laterally topoints in front of the extension parting-strips 7. The roller 11 ismounted in the brackets, and the clock-spring 12 connects the roller 11to one of the brackets, as shown in Fig. 5. The woven-wire fly-screen 13is attached to the roller and adapted to be wound thereon, and thestiffening-bars 14 and 15 are attached to the lower edgeof the screen,one on each side thereof, as shown in detail in Fig. 4. The brackets 16are attached to the windowcasing 17, and the hooks 18 extend outwardlyfrom the brackets through the screen and engage the bars 14 and 15 tohold the lower edge of the screen securely in place against thewindow-casing.

The roller is preferably secured to the lower bar of the lower outersash, so that when the sash is raised the screen is drawn from theroller to close the opening between the sash and the window-casing, andwhen the sash is lowered the tension of the spring winds the screen uponthe roller.

It is obvious that the arrangement might be reversed, the roller beingattached to the window-casing and the stiffening-bars attached to thewindow-sash; but I prefer the construction shown. 7

A sheetmetal casing 19 is attached to the window-sash in position tocover the screen when it is wound upon the roller, as shown in Fig. 1.As the screen unwinds from the roller the side edges will lie againstthe outer faces of the parting-strips 7. A bar 20 is inserted betweenthe roller and the front face of the lower bar of the sash to preventthe flies from passing downwardly between the roller and the sash, asshown in Figs. 1 and 3a I claim-- In a window-screen, the combinationwith the parting-strips 7; of the extension-pieces 5 2 warez connectingthe roller to one of the brackets; gaging the bars 14 and 15;substantially as the fly-screen 13 attached to the roller and specified.I0 adapted to be wound thereon; the stifiening- In testimony whereof Iaffix my signature bars 14 and 15 attached to the lower edge of inpresence of two witnesses.

the flyscreen, one on each side thereof; MAX KOLF. brackets 17 attachedto the Window-casing; Witnesses:

and hooks 18 extending outwardly from the JOHN A. BADENDIEOK,

brackets through the screen, and rigidly en- E. J. DIENST.

